Concept

Internal combustion engine cooling

Publications associées (78)

Two-phase mini-thermosyphon electronics cooling: Dynamic modeling, experimental validation and application to 2U servers

John Richard Thome, Jackson Braz Marcinichen, Nicolas Lamaison, Chin Lee Ong

Gravity-driven cooling systems employing microchannel flow boiling can become a scalable and viable long term solution for the cooling of datacenter servers. In order to design this emerging type of cooling system, a new dynamic simulation tool using inter ...

Pergamon-Elsevier Science Ltd2017

Feasibility study of a CO2-based system in NEST

François Maréchal, Luc Girardin, Raluca-Ancuta Suciu

The NEST building laboratory of Empa and Eawag is a modular research and innovation demonstrator where new technologies, materials and systems are tested, researched, honed and validated in realistic conditions. In the NEST concept, only the supporting str ...

Industrial Process and Energy Systems Engineering Group, EPFL Valais Wallis2017

Role Of A Liquid Accumulator In A Passive Two-Phase Liquid Cooling System For Electronics: Experimental Analysis

John Richard Thome, Jackson Braz Marcinichen, Raffaele Luca Amalfi, Nicolas Lamaison

Gravity-driven two-phase liquid cooling systems using flow boiling within micro-scale evaporators are becoming a game changing solution for electronics cooling. The optimization of the system's filling ratio can however become a challenging problem for a s ...

Amer Soc Mechanical Engineers2017

Key Energy and Technological Aspects of Three Innovative Concepts of District Energy Networks

François Maréchal, Daniel Favrat, Samuel Henchoz, Patrick Chatelan

Energy needs in urban areas are heterogeneous by their nature, spatial distribution and temperature level required. Three concepts of district energy networks that could provide the energy services efficiently to a city centre are compared. The focus is on ...

2016

Two-Phase Mini-Thermosyphon Electronics Cooling, Part 4: Application to 2U Servers

John Richard Thome, Jackson Braz Marcinichen, Nicolas Lamaison, Chin Lee Ong

This paper is the fourth part of the present study on two-phase mini-thermosyphon cooling. As mentioned in the first three parts, gravity-driven cooling systems using microchannel flow boiling can become a long-term scalable solution for cooling of datacen ...

Ieee2016

Can Resistive-Type Fault Current Limiter Operate in Cryogen-Free Environment?

Bertrand Dutoit

Superconducting fault current limiters are unique devices that offer fast response to fault without need of an external triggering system. Therefore, they are interesting for industrial use, although their price is high. The principle of the resistive faul ...

Ieee-Inst Electrical Electronics Engineers Inc2016

Two-Phase Mini-Thermosyphon Electronics Cooling, Part 2: Model and Steady-State Validations

John Richard Thome, Jackson Braz Marcinichen, Nicolas Lamaison, Chin Lee Ong

In the present study, a simulation code specifically developed to evaluate the thermal-hydraulic performance of thermosyphon cooling loops is validated through the experimental results obtained in the Part 1. It considers levels of heat load conventionally ...

Ieee2016

Potential of Small-Scale Turbomachinery for Waste Heat Recovery on Automotive Internal Combustion Engines

Jürg Alexander Schiffmann, Eliott Philippe Guenat, Violette Mounier, Kévin Rosset

This paper investigates the waste heat recovery potential of internal combustion engines, using organic Rankine cycles running on small-scale radial turbomachinery. ORC are promising candidates for low-grade thermal sources and the use of dynamic expanders ...

2015

Key energy and technological aspects of three innovative concepts of District energy networks

François Maréchal, Daniel Favrat, Samuel Henchoz

In urban areas, the use of thermal energy services is intensive and relatively heterogeneous by their nature, spatial distribution and temperature level required. In this study three concepts of district energy networks that could provide these services ve ...

2015

High-Resolution Heat Transfer Measurements and Crossflow Regulation in Narrow Impingement Cooling Channels with Divergent Geometries

Peter Ott, Alexandros Terzis, Stavros Bontitsopoulos

The present study describes an experimental investigation into narrow impingement cooling channels with divergent geometries. The following analysis aims to clarify the influence that this particular form factor exerts on the heat transfer distribution, as ...

2015

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